Nathaniel s



N. S. GARY. TirerUps etting Machine.

No. 225,916 Patented Mar. 30,1880.

'INVENTORI UNITED STATES PATENT OFFICE.

NATHANIEL S. CARY, OF PROVIDENCE, RHODE ISLAND.

TIRE-UPSETTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 225,916, dated March 30, 1880.

Application filed May 8, 1879.

To all whom it may concern Be it known that I, NATHANIEL S. CARY, of the city and county of Providence, State of Rhode Island, have invented a new and useful Improvement in Tire-Upsettin g Machines and I hereby declare that the following is a full, clear, and exact description of the same,-

reference being had to the accompanying drawings, forming part of this specification.

The object of this invention is to produce a simple and strong machine for upsetting tires, in which the portion to be upset will be held firmly to prevent kinking, and light tires be held firmly without injuring the surface.

The invention consists in the arrangement of an adjustable hinged gage or block for holding the portion to be upset, and in the combination of the various parts, as will be more fully set forth hereinafter, and pointed out in the claims.

Figure 1 is a perspective view of my improved upsetter, showing the side for upsetting tires and the levers of the side for upsetting straight work. Fig. 2 is a side view, partly in section, showing the application of a cam, lever, and cam connected by a link for compressing the metal.

In the drawings a represents the fixed bedplate, and a the sliding bed. I) is a projecting portion of the fixed bed-plate, preferably wed ge-shaped, arranged to enter a corresponding recess, 1), in the sliding bed. The object of this arrangement is to secure a support to the metal to be upset, and thus prevent the kinking of the same.

The projection 11 and recess b may be of other forms than the wedge shaped form shown, provided each will support part of the metal to be upset.

c is an adjustable post, provided with the hinged stop d. This post and stop are adjusted to rest on, or nearly on, the metal to be upset, and thus hold it to the bed-plate and prevent its bending upward.

To allow for the creeping of the metal in the act of upsetting, the lower edge of the hinged stop (1 is rounded, so that it may follow the metal and keep in contact with the same.

c e are hand-levers extending from the cams e 6. These cams may be provided with serrated edges, as usual, and as shown in Fig. 2; but for thin tires, or for metals the surface of which is not to be defaced or injured by the indentures of these serrated edges or points, I employ the hinged plates f f, and press the same against the metal by the cams e and levers c. The plates ff can be arranged to hold the metal to be upset, so that only a short length is exposed between the plates, and the upsetting is confined to this length.

9 is a block sliding in suitable grooves, to which block the sliding base a and the camlevers are secured. Within the block g the cam h is secured so as to turn on a pin, and connected with the cam h by a link, as

shown. in Fig. 2, is the cam t, secured in the cam i will roll on the cam h, and being connected, both must turn on their axis, and the distance through which the block g is moved by the lever moving through a certain distance depends on the shape of the cams z and h, and by the proper shape of these cams the pressure exerted on the metal to be upset may be made cumulative, so that as the compression increases the force is increased.

The frame A is substantially built, so as to resist all strain and secure durability.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In an upsetting-machine, the combination, with the earns a c and levers c e, of the hinged plates f, substantially as and for the purpose set forth.

2. The combination, in an upsetting ma chine, with the adjustable arm 0, of the hinged stop (1, arranged to prevent the raising of the metal, substantially as and for the purpose described.

3. The combination, with the fixed and sliding bed of an upsetting machine and the frame, of the cam '5, provided with the lever k, the block 9, provided with the cam h, and the link Z, arranged to operate substantially as and for the purpose set forth.

NATHANIEL S. GARY.

Witnesses:

JOSEPH A. MILLER, JOSEPH A. MILLER, Jr. 

